DETERMINATION OF ABSORPTION-LINE PARAMETERS USING 2-TONE FREQUENCY-MODULATION SPECTROSCOPY WITH DIODE-LASERS

被引:10
|
作者
KAURANEN, P [1 ]
AVETISOV, VG [1 ]
机构
[1] GEN PHYS INST,MOSCOW 117942,RUSSIA
基金
瑞典研究理事会;
关键词
D O I
10.1016/0030-4018(94)90324-7
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Accurate determination of line parameters from weak absorption using two-tone frequency-modulation spectroscopy (TTFMS) with a GaAlAs diode laser is demonstrated. The air-broadening of three oxygen A-band lines is determined, using a least-squares fit. For a peak absorption of 1.3 x 10(-3) the deviation between the experimental and the fitted spectrum is less than 1%. The fitting procedure is successfully tested on absorptions as small as 4.5 x 10(-5).
引用
收藏
页码:213 / 217
页数:5
相关论文
共 50 条